// simpleBellaAI.js - Simplified Bella AI, specifically for testing the chat interface
// Removed complex module dependencies, focusing on chat functionality

class SimpleBellaAI {
    static instance = null;

    static async getInstance() {
        if (this.instance === null) {
            this.instance = new SimpleBellaAI();
            await this.instance.init();
        }
        return this.instance;
    }

    constructor() {
        this.currentMode = 'casual'; // Chat modes: casual, assistant, creative
        this.isInitialized = false;
    }

    async init() {
        try {
            console.log('Initializing simplified Bella AI...');
            // Simulate initialization process
            await new Promise(resolve => setTimeout(resolve, 1000));
            this.isInitialized = true;
            console.log('Simplified Bella AI initialization complete');
        } catch (error) {
            console.error('Simplified Bella AI initialization failed:', error);
            throw error;
        }
    }

    async think(prompt) {
        try {
            console.log('Bella is thinking:', prompt);
            
            // Simulate thinking time
            await new Promise(resolve => setTimeout(resolve, 500 + Math.random() * 1000));
            
            // Generate different style responses based on mode
            return this.generateResponse(prompt);
            
        } catch (error) {
            console.error('Error during thinking process:', error);
            return this.getErrorResponse();
        }
    }

    generateResponse(prompt) {
        // Enhanced response generation, simulating more natural, personalized LLM responses
        
        // Extract keywords for more relevant responses
        const keywords = this.extractKeywords(prompt);
        const keyword = keywords.length > 0 ? keywords[Math.floor(Math.random() * keywords.length)] : "this topic";
        
        const responses = {
            casual: [
                `I found "${keyword}" quite interesting! I'd love to hear more about your thoughts on this. What aspects of it interest you the most?`,
                `Regarding "${keyword}", that's something worth exploring. I'm curious to know what sparked your interest in this topic?`,
                `"${keyword}" is definitely intriguing. It's always nice chatting with you about these things. Do you have any other thoughts on it?`,
                `I really enjoy talking about "${keyword}"! Your ideas are always so unique and give me new perspectives. Let's keep this conversation going.`,
                `Hearing you talk about "${keyword}" brightens my day! You always find interesting topics. I'm curious, what made you think of this?`,
                `"${keyword}" is such a great topic! I feel like we're on the same wavelength. You know what? Time flies when we chat because it's so enjoyable!`,
                `I find "${keyword}" particularly fascinating! You always surprise me. Tell me, have you made any other interesting discoveries lately? I'd love to hear about them!`
            ],
            assistant: [
                `Regarding "${keyword}", I'd be happy to provide some useful information and advice. That's a great question - let me organize the relevant details for you.`,
                `"${keyword}" is a valuable topic. From what I understand, there are several key points worth noting. First, we can look at...`,
                `When it comes to "${keyword}", I'd like to analyze it from several angles. This question actually involves multiple aspects - let me help you sort through the key information.`,
                `Your question about "${keyword}" has depth. I suggest considering it from these perspectives: first, understanding the basic concepts; second, analyzing practical applications; and finally, considering future developments.`,
                `"${keyword}" is definitely a topic worth discussing. Based on the information I have, I can provide some professional insights. First, we need to clarify...`,
                `About your "${keyword}" question, I'd like to provide a clear answer. There are several important aspects to consider - let me analyze them for you.`,
                `"${keyword}" is a great question! I'm glad you're interested in this area. Let me share some relevant information that I hope will be helpful.`
            ],
            creative: [
                `Wow! The topic of "${keyword}" really ignites my creative spark! ✨ Imagine if we expanded this concept into a whole new dimension - what might happen? Perhaps we could...`,
                `"${keyword}" is such an imaginative topic! 🌈 I can already picture countless fascinating scenarios. For instance, imagine a world where ${keyword} could...`,
                `Hearing "${keyword}" makes me envision a whole new world! 🚀 It reminds me of an interesting story: in a distant place, ${keyword} became the center of people's lives, and then...`,
                `"${keyword}" inspires me! 💡 I've thought of a super interesting idea: what if we combined ${keyword} with art? What kind of wonders might we create?`,
                `Amazing! "${keyword}" makes my imagination soar! 🎨 We could use this concept as a starting point to create a brand new story or game. Imagine if the main character was...`,
                `"${keyword}" is truly a wellspring of creativity! I suddenly wonder, what if we looked at this issue from a completely different angle? What new discoveries might we make? For example, if ${keyword} in the future became...`,
                `When you mention "${keyword}", a wonderful image immediately flashes in my mind! Imagine a world full of possibilities where ${keyword} could take any form... isn't that magical?`
            ]
        };

        // Get response list for current mode
        const modeResponses = responses[this.currentMode] || responses.casual;
        
        // Randomly select a response template
        const randomResponse = modeResponses[Math.floor(Math.random() * modeResponses.length)];
        
        // Further personalize the response, adding some random personalization elements
        return this.personalizeResponse(randomResponse, prompt);
    }
    
    // Extract possible keywords from user input
    extractKeywords(prompt) {
        // Simple keyword extraction logic
        const words = prompt.split(/\s+|[,.!?;:，。！？；：]/);
        // Filter out short words and common words
        return words.filter(word => 
            word.length > 1 && 
            !['the', 'and', 'is', 'in', 'I', 'you', 'he', 'she', 'it', 'they', 'we', 'with', 'this', 'that', 'have', "don't", 'not', 'for'].includes(word)
        );
    }
    
    // Further personalize the response
    personalizeResponse(response, prompt) {
        // Add some random personalization elements
        const personalizations = [
            // Don't add any extra content
            (resp) => resp,
            // Add a random emoji
            (resp) => {
                const emojis = ['😊', '💕', '✨', '🌟', '🎵', '🌈', '☺️', '🤔', '👍', '💡'];
                const emoji = emojis[Math.floor(Math.random() * emojis.length)];
                return resp + ' ' + emoji;
            },
            // Add a random ending phrase
            (resp) => {
                const endings = [
                    "I'd love to hear your thoughts!",
                    "What do you think?",
                    "I'm curious about your perspective.",
                    "Hope my response is helpful!",
                    "We can continue discussing this topic!"
                ];
                const ending = endings[Math.floor(Math.random() * endings.length)];
                return resp + ' ' + ending;
            }
        ];
        
        // Randomly select a personalization method
        const personalizer = personalizations[Math.floor(Math.random() * personalizations.length)];
        return personalizer(response);
    }

    // Get error response
    getErrorResponse() {
        const errorResponses = [
            "Sorry, I'm a bit confused right now. Let me gather my thoughts...",
            "Hmm... I need to think about this a bit more. Please give me a moment.",
            "My thoughts are a bit scattered. Give me a moment to organize them.",
            "Let me rephrase that. Just a moment please.",
            "Oops, I got distracted. Could you repeat that?"
        ];
        
        return errorResponses[Math.floor(Math.random() * errorResponses.length)];
    }

    // Set chat mode
    setChatMode(mode) {
        if (['casual', 'assistant', 'creative'].includes(mode)) {
            this.currentMode = mode;
            console.log(`Chat mode switched to: ${mode}`);
            return true;
        }
        return false;
    }

    // Get current configuration information
    getCurrentConfig() {
        return {
            useCloudAPI: false,
            provider: { name: 'simple', model: 'SimpleBellaAI' },
            mode: this.currentMode,
            isConfigured: true,
            isInitialized: this.isInitialized
        };
    }

    // Clear conversation history (no actual operation needed in simplified version)
    clearHistory() {
        console.log('Conversation history cleared');
    }
}

// Expose SimpleBellaAI as a global variable
window.SimpleBellaAI = SimpleBellaAI;
// Also expose as BellaAI for compatibility
window.BellaAI = SimpleBellaAI;

console.log('SimpleBellaAI loaded successfully');